Rigid Insulation Under Metal Roofing

Installing metal roof insulation is not a difficult project.

Rigid insulation under metal roofing.

Foil insulation is a radiant barrier and it works by. Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. To help with energy conservation and noise pollution many office buildings and homes use metal roof insulation as a way to cut down on these issues. The bottom layer of a single ply membrane roofing system is the roof deck or substrate.

Polyurethane spray foam metal roof insulation. The trim the frieze boards the fascia and the overhangs all had to look like they belonged. Use rigid foam insulation to cover wider spans of roof sheathing between joists. According to the manufacturer s instructions install the metal roofing panels over the insulation.

Cut each sheet to the desired size using a utility knife then fasten it in place using staples or adhesive. Use duct tape to seal the seams and further protect against moisture air leaks. Insulating with spray foam insulation. The first step with roof installation is to prepare the roof deck by getting rid of all dirt dust and contaminants.

The metal roof has been a very popular roofing material for some time but people have just started using insulation within the roofing system as a means to block out sound and keep heat in. Avoids nails or screws which could penetrate the metal roof and cause leaks. The 6 inches of rigid insulation added to the top of the existing roof deck needed to be done in a manner that was invisible. Place the sheets close together but don t let them overlap.

The spray can be basically applied on top or bottom of the metal roofing surfaces. The roof deck can be plywood metal concrete or wood planks. Compared to the fiberglass batts this insulation is much better. Install rigid foam insulation over the entire surface of the roof.

Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch.